脉冲探地雷达小型化控制与采集系统设计  

Design of Impulse Ground Penetrating Radar Miniature Control and Acquisition System

作　　者：戴舜[1,2] 方广有[1] 

机构地区：[1]中国科学院电子学研究所,北京100190 [2]中国科学院研究生院,北京100049

出　　处：《现代雷达》2011年第2期5-8,共4页Modern Radar

基　　金：国家863高技术计划课题(2007AA12Z124)

摘　　要：根据脉冲探地雷达低成本、高精度和小型化的要求,研制了一种基于微控制器的超宽带(UWB)探地雷达信号控制与数据采集系统。文中分析了延时式等效时间采样原理,阐述了系统总体结构,描述了触发脉冲生成电路和回波数据采集通道的工作原理和设计方法,给出了底层固件的开发流程以及系统软件功能。研制的高集成度嵌入式控制与采集系统,降低了探地雷达系统整体成本,提高了系统的实时性和可靠性。According to the demand of the low cost, the high precision and the minimization for the impulse ground penetrating radar （GPR）, a ultra wideband （UWB） GPR signal control and data acquisition system based on a micro programmed control unit （MCU） is developed. The step delay equivalent time sampling principle is analyzed. The system structure is described. The design methods and the principles of the trigger signal circuit and the acquisition hardware are described. The flowchart of the MCU firmware and functions of the system software are introduced. The integrated embedded control and acquisition system reduced the radar system cost and improved the real-time implementation and the stability of the GPR system.

关 键 词：探地雷达 控制与采集系统 微控制器 通用串行总线 固件 

分 类 号：TN957.52[电子电信—信号与信息处理]